An Embedding Scheme for Binary and Grayscale Watermarks by Spectrum Spreading and Its Performance Analysis.
Ming-Chiang ChengKuen-Tsair LayPublished in: IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (2007)
Keyphrases
- gray scale
- color images
- binary images
- watermark embedding
- grayscale images
- mathematical morphology
- gray level
- watermarking technique
- morphological operations
- digital images
- watermarking scheme
- inverse halftoning
- image authentication
- copyright protection
- watermarking algorithm
- structuring elements
- image watermarking
- spread spectrum
- data hiding